Water-elevating apparatus



E. 0. CARTWRIGHT.

WATER ELEVATING APPARATUS.

APPLlCATlON FILED JUNE 10, 1919. RENEWED MAY 19, 1921. 1,383,599.

ATTORNEYQ INVENTOR Patented July 5, 1921.

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E. 0. CARTWRIGHT. WATER ELEVATING APPARATUS. APPLICATION FILED JUNE 10, 1919. RENEWED MAY 19.1921. 1,383,599.

Patented y 5, 1921.

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E. 0. CARTWRIGHT.

WATER ELEVAT ING APPARATUS. APPLICATION FILED JUNE 10, 1919. RNEWED MAY 19. 1921.

1,383,599, Patented July 5, 1921.

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APPLICATION FILED JUNE 10, I919- RENEWED MAY I9. 1921.

1,383,599, Patented July 5, 1921.

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511C770 draws a 63/? M r fm r )brced up by ,pressune ATTORNEYS UNITED STATES ERNEST o. CARTWRIGHT, or SPRINGFIELD, OHIO, ASSIGNOR TO CHARLES E. GARDNER,

PATENT v OFFICE.

OF SPRINGFIELD, OHIO.

WATER-ELEVATING APPARATUS.

Application filed June 10, 1919, Serial No. 303,068.

To aZZ whom it may concern Be it known that I, ERNEST O. CART- wnrcrrr, arcitizen of the United States, re-

siding at Springfield, in the county of Clark, and State ofOhio, have invented a new and Improved lVater-Elevating Apparatus, of which the following is a specification.

My invention relates to a device for utilizing the city water service supply for pumping or elevating a supply of cistern water to the distributing pipe system of a house whereby advantage may be taken of the high pressure of the city service for automatically maintaining an adequate supply of pure water for consumption in the house. It frequently happens that the water supply of cities is not of the required softness, for domestic use and it is frequently desirable to obtain the domestic water supply from another source, usually a cistern or well. More adequate means, therefore, must be provided for delivering the soft water from the cistern or well into the service pipes Of'the residence and my invention provides a means for this purpose which is operated and obtains its motive power from the city supply mains.

In its generic nature, the present invention comprises a hydraulic pumping apparatus so arranged and designed as to be. operated by the pressure water from the citymains to elevate the cistern or well water and deliver it under adequate head to the service pipes of the residence and maintain a sufficient pressure therein to cause delivery of the water from the outlets of the house piping system at the highest elevation desired.

An object of the invention is to provide an apparatus of the character stated of an efficient construction simple in its-arrangement of parts and of low first cost and maintenance so as to enable the production of an apparatus which can be installed in a residence at a low expense and will be' selfrnaintaining, requiring but little attention and fully automatic in its operation.

In its more specific nature, the invention involves those novel details of construction, combination and arrangement of parts, all of which will be first fully described and then be specifically pointed out in the ap- Specification of Letters Patent.

7 Patented July 5, 1921. Renewed May 19, 1921. Serial No. 470,946.

pended claims, reference being had to the accompanying drawings, in which Figure l is a side elevation, the oil-reservoir belng shown in section and illustratin the invention. b

Fig. 2 is a central side elevation and part central vertical section, parts being broken away, illustrating the invention.

Fig. 3 is a horizontal section on the line 33 of Fig. 2 looking-in the direction of the arrow.

Fig. at is a vertical section on the line 4'4 of Fig. 3 looking in the direction of the arrow.

Fig. 5 is a vertical section on the line 55 of Fig. 3 looking in the direction of the arrow.

Fig; 6. is an enlarged horizontal section taken substantially on the line 66 of Fig. 1.

1g. 7 is a detail elevation, parts being broken away, of the two control valves and the throw-over weight lever that cooperates therewith.

Fig. 8 is a detail section and part elevation of a portion of the apparatus.

Figs. 9 to 12, inclusive are diagrammatic views illustrating thelaction of the Valve devices.

Referring now to the accompanying drawings, in which like letters and numerals of reference indicate like parts in all of the figures, l is a base casting which is provided with a duct 2 from a port 3 for delivering the spent pressure water to waste. The casting l is also provided with 'a port 4 for each high pressure cylinder which is connected with the hollow piston rods 7 of the respective pressure cylinders bya duct 5. In the preferred arrangement I provide at least two sets of cylinders,,z'. 6., two pressure cylinders and two secondary cylinders, there being a pressure cylinder (primary) and a secondary cylinder to each unit.

designates the hollow piston rods of the pressure cylinders 9, the piston rods 7 being threaded into the casting 1 at 6 (see Fig. 2) and being provided with packing members 8, as indicated. Each set of cylinders, namely, a high pressure cylinder 9 and a low pressure cylinder 28, are united as a unitary structure, preferably by being integrally cast as a-sinhaving a primary cylinder gle casting, .Wlll be seen,"

' another unit.

12 designates pin plugs which carry pins 13 on which suitable weights 14 are located, there being at least one weight 1 1 for each casting. ployed will depend upon the pressure in the city -mains,as will be later more clearly understood.

oscillating valve 15 which has an internal chamber for effecting communication at 1 times between the ports 3 and i and at other times closing off the ports 1 from communication "with' the port 3 and permitting the pressure water from the city service mains I to flow via the duct 20in the cap 19 to the shank 17 has a squared 2&---25 which project into slotted links;

ports i. The valve 15 includes a flange 16 which rests against the adjacent surface of the casting 1 and also includes a shank 17 which has a bearing fit in a suitable bore in the castingl, (see Fig. 2). The stem or I projection 18 which enters the similarly apertured portion 22 of the lever 21,'the latter having a weight 23 at its end'for a purpose presently explained.-

The weight lever 21 is provided with arms 28 27, respectively that are carried by the castings 10'-11, respectively.

29 designates the hollow piston rods for i p the secondary cylinders 28, the said rods having packing members 30 and being threaded into the castingl at 31 to communicate with the ducts 32 that in turn communicate with'the ports 33, the latter being controlled by a second controlling valve 15 whose flange 16 seats against the adjacent face of the casting and which is provided with a bearing shank 17* and squared end 18*, the latter projecting into the opening 22 of the weight lever whereby both valves 15 and 15 and lever 35 is the suction be piped u with the cistern or well 13 by a duct 4: 1 ee Fig. 1) and deliver Water to the port 34 from which it flows via the interior chamber of the valve 15 to one or the other of the ports 33, according as the sameis opened. 3 6 is a cap placed over the valve 15 and ports 3 1-33 and having a duct 37'Wl110l1 is connected at 38 to the duct which adapted to standpipe 39 of 'thehouse piping system,

from which standpipe the delivery pipes dO radiate. The standpipe 39 is capped at 411150 provide an air cushion in the upper air may be compressed by the water column,

d aswillbe later'understood."

The castings 10 -11 are slotted as at 12 The amount of weight 14 em The ports3v and 4 arecontrolled by an' 'of the city service mains 21 will oscillate in unison.

in which chamber the 7 to allow for the movement of the weight lever 21, and the base casting 1 is similarly in oil 6fcontained 1n a l-tank orreservo1r-45 in which the parts are set so as to provide a constant source of lubrication for the moving parts, thusmaking it unnecessary for an attendant to oil the parts from time to 7 time.

The average pressure of water in house service pipes is about 10 pounds, which is equal to a head of 92.3 feet. The average heightto which it is desirable to .elevate soft water is about 37' feet to give good pressure for a shower on the second floor. Therefore, it is possible that 2 times the quantity of soft water'can be raised to a height of 37 feet by a unit quantity of pressure water at 92.3 feet head. It is this principle that I have utilized in my present apparatus and by using the pres'surewater to elevate a weight as heavy as it will handle and to take advantage of the energy of the lifted weight to force the soft waterto a levelas high as it will handle I am enabled with my apparatus to reduce the friction loss to the minimunn a p In general, the operation of the device may be best explained as'follows: Calculation of the weight of the castings'1011 is made and such additional weights 1 1 are applied as will be necessary to make the weight of the castings slightly'less than the equivalent of the pressure hea d of the city water supply so that when the pressure thereof is admitted into the cylinders 9, the said cylinders will be gradually raised by the pressure therein and thus cause a suction in the secondary cylinders" 28 to draw the water in the cistern or well into the same on the up-stroke of the cylinder.

The:city water supply is connected to the duct 20 and maintains a constant pressure therein. 7 Assume the valves to be in the position indicated in Figs. 9 and 10, the city pressure is being supplied to the right hand port 4; in Fig. 10 and is elevating the casting 11, containing the cylinders 9 and rock the lever 21 toward a vertical position and as soon as the lever 21 has reached the vertical position (see Figs. 4 and 5) and passed slightly beyond the same, gravity will come inte play to cause the said lever 21 to be quickly swung over to the" opposite side, thereby closing the ports 4, at the right in Fig. 10, and 33, at the left in Fig. 9, and opening the port 4 at the left in Fig. 10, and closing the port 33 at the right in Fig. 9,

from communicating with the respective ducts 20 and 37, and at the same time bringing the duct 4 at the right in Fig. 10 in communication with the port 3 (see Fig. 12) so that the water within the pressure cylinder 9 may be free to exhaust through the waste duct 2 so that the pressure therein from the duct 20 can now enter the left hand port 4 in Fig. 12, and be delivered to the cylinder 9 of the casting 10 to raise it to the vertical position.

When the valve has been thus thrown over so as to bring the port 33 at the right in Fig. 9 into communication with the port 34 (see Fig. 11) the port 33 at the left in Fig. 9 will be brought into communicationwith duct 37 so that the water in the cylinder 28 of the casting 11 (see Fig. 11) will be free to flow into the standpipe 39 via the duct 38.

N ow, assume that the pressure water from the city mains is applied to the duct 20 and the duct 37 connected with the house service pipes, all of which are filled with water and the outlets 40 thereof closed. one of the castings 10 and 11 will be at the upper extremity of its limit of travel and the valves 1515 will be held by reason of the engagement of the links 26-27 with the respective arms 2425. It should be understood right here that the valves 15V15 and weighted lever 21 are so fixed that they will not rest in equilibrium when arms 2425 are released from engagement by the links 2627 and it should be further understood that when the valves are in the horizontal position shown in Figs. 4 and 5, the ports 4 on the pressure side are closed off from the supply duct 20 but slightly opened to communicate through the interior of the valves with the waste port 3 (see Fig. 5) while the ports 33 on the house service side are both slightly opened to effect communication between the ducts 32 and 37 and shut off communication between ducts 32 and port 34 (see Fig. 4). As soon as one of the taps 40 is opened the equilibrium will be broken and the cylinder casting 10 or 11 will start to fall, due to the escape of the water from the cylinders 28 through the slightly opened ports 33 to the service duct 37, thus releasing the links 26-27 from arms 2425,, thereby allowing the weight 23 to fall over to one side or the other as the case may be. The falling over of the weight 23 causes the valves to be rocked over to a position to bring them as shown in Figs. 9 to 12, inclusive, thereby admitting pressure water into one cylinder 9 and again raising that cylinder to its maximum height while the other casting is descending to force the water from the chamber 28 into the standpipe 39.

At this time, fr

While I have shown my invention as embodying but two sets of cylinders, it is obvious that the number of sets may be increased as desired, the greater the number of sets, the more uniform theflow of water in the house piping system, will be.

From the foregoing description, taken in connection with the accompanying drawings, it is thought the complete construction, operation and advantages of my invention will be readily understood by those skilled in the art and I desire it understood that changes in the details of construction, combination and arrangement of the parts may be made without departing from the spirit of the invention or the scope of the appended claims.

What I claim is 1. An apparatus of the class described, a primary and a secondary cylinder oined together, relatively fixed primary and secondary pistons coiiperative with said cylinders, means including a shiftable valve de vice for delivering pressure fluid to the primary cylinder and exhausting the same therefrom to raise said cylinder and allow the same to fall again, means including 'a shiftable valve device for admitting water om a source of supply into said secondary cylinder as said cylinders rise and permitting the same to be expelled from said secondary cylinder as the cylinders fall, a source of pressure fluid supply cooperative with said primary cylinder and a source of service water supply and a service delivery piping system cooperative with said secondary cylinder.

2. In apparatus of the class described, a primary and a secondary cylinder 'joined together, relatively fixed primary and secondary pistons cooperative with said cylinders, means including a shiftable valve device for delivering pressure fluid to the primary cylinder and exhausting the same therefrom to raise said cylinder and allow the same to fall again, shiftable valve device for admitting water from a source of supply into said secondary cylinder as said cylinders rise and permit ting the same to be expelled from said secondary cylinder as the cylinders fall, a-

source of pressure fluid supply cooperative with said primary cylinder and a source of service water supply and a service delivery piping system cooperative with said secondary cylinder, and including a standpipe hav-" ing an air chamber, said cylinders being of sufiicient weight to cause compression of the air in said chamber.

3. In apparatus of the class described, a cistern, a service pipe system including a standpipe having an air cushion chamber, a source of motive fluid supply and an elevating apparatus which includes primary and secondary cylinder and piston sets and control valve mechanism for admitting the n10- means including a' ice water from the cistern to said secondary cylinder and delivering it from the said secondary cylinder to the service standpipe and means governed by the rise of the cylinders for shifting said valve mechanisms.

- means governed 4. In apparatus of the class described a cistern, a service pipe system including a standpipe having an air cushion chamber, a source of motive'fluid supply and an elevating apparatus which includes primary and secondary cylinder and pistonsets and con-' trol valve mechanism for admitting the motive fluid to and exhausting it from said primary cylinder to raise both of said cylinders, control valve mechanism for admitting service water from the cistern to said secondary cylinder and delivering it from the said secondary cylinder to the service standpipe and by the rise of the cylinders for initiating the shifting of said valve mechanisms in unison.

5. In apparatus of the class described, a plurality of sets of primary and secondary, cylinders and pistons therefor, a control valve for each pair of primary cylinders and pistons, another control valve for each pair of secondary cylinders and pistons, a source of pressure water and an exhaust duct thereif for, cooperatively connected with said primary cylinders, the pressure water inflow and outflow to and from said primary cylinders being governed by the control valve therefor, a source of service water supply and a service water distributing pipe system cooperative with said secondary cylinders and controlled by the control valve therefor.

6. In apparatus of the class described, a

plurality of sets of primary and secondary cylinders and pistons therefor, a control valve for each pair of primary cylinders and pistons, another control valve for each pair' of secondary cylinders and pistons, a source of pressure water and an exhaust duct therefor cooperatively connected with said primary cylinders, the pressure water inflow and outflow to and from said primary cylinders being governed by the control valve therefor, a sourceof serv1ce water supply, a

service water distributing pipe system cooperative with said secondary cylinders and controlled by the control valve therefor, and means operated by the movement of said cylinders for controlling the action of said valves. 7

7 In apparatus of the class described, a plurality of sets of primary and secondary cylinders and pistons therefor, a control valve for each pair of primary cylinders and pistons, another control valve for each pair and outflow'to and from said primary cylin ders being governed by the control valve therefor, a source of service water supply, a service water distributing'pipesystem cooperative with said secondary cylinders and controlled by the control valve therefor, and means operated by the movements of said. cylinders for initiating the operation of said valves and other means for completing said operation. p a

8. An apparatus of the class described, a base, primary and secondary hollow'piston rods and pistons mounted on said base, primary and secondary cylinders cooperative wlth sald plstons and adapted to rise and fall on said rods, a control valve mounted in bearings in said base for said primary cylindersand another control valve mounted on said base for said secondary cylinders, ducts for delivering pressure fluid'via said first.

mentioned valve to said primary cylinders and exhausting the same therefrom, other ducts for delivering service water to said secondary cylinders and delivering the same therefrom, said other ducts being controlled by the valve for said secondary cylinders,

'means governed by the" movement of said cylinders for initiating the shifting movement of said valves and other means common to both valves for completing the shifting movement. p

9. An apparatus of the class described, a base, primary and secondary hollow piston rods and pistons mounted-on said base, primary and secondary cylinders cooperative with said pistons and adapted to rise and fall on said rods, a control valve mounted in bearings in said base for said primary cylinders and another 'control valve mounted on said base for said secondary cylinders, ducts for delivering pressure fluid via said first mentioned valve to said secondary cylinders and exhausting the same therefrom, other ducts for delivering service water to said secondarycylinders and delivering the same therefrom, said other ducts being controlled by the valve for said secondary cylinders, means governed by the movement of said cylinders for initiating the shifting movement of said valves, other means common to both valves for completing the shifting 'movement and an oilreservoir in which the moving parts of the aforesaid structure are immersed. V I

10. In apparatusof the 'class described, a

body having a primary cylinder and a seccylinder to raise the cylinders and permit the same to fall, a source of service water supply, means for delivering city service water from the source of supply to said secondary cylinder as said cylinder is raised, means for delivering the water from said secondary cylinder to the distributing service pipes, and an oil reservoir in which the moving parts of the aforesaid structure are immersed.

11. In apparatus of the class described, a base having a pair of pressure ports and a single exhaust port cooperating therewith, a pair of pressure piston rods respectively in communication with the respective pressure ports, a control valve mounted on the base for governing the communication between the aforesaid ports, means for delivering pressure fluid to said control valve for distribution to the respective pistons,

said base having a suction duct and port and a pair of distributing ports, a pair of secondary pistons in communication respectively with the respective distributing ports, a control valve governing the communication between said suction duct port and said distributing ports, an outlet duct also cooperating with said last named control valve for delivering the water from said distributing ports, a pair of bodies each including a primary and a secondary cylinder cooperative respectively each With one of the primary and one of the secondary pistons, means for shifting the respective valve devices to alternately supply pressure water to the respective primary pistons and cylinders and exhaust the same therefrom and gova'n the flow of water to said outlet duct.

12. In apparatus of the class described, a base having a pair of pressure ports and a single exhaust port cooperating therewith, a pair of pressure piston rods respectively in communication with the respective pressure ports, a control valve mounted on the base for governing the communication between the aforesaid ports, means for delivering pressure fluid to said control valve for distribution to the respective pistons, said base having a suction duct and port and a pair of distributing ports, a pair of secondary pistons in communication respectively with the respective distributing ports, a control valve governing the communication between said suction duct port and said distributing ports, an outlet duct also cooperating with said last named control valve for delivering water from said distributing ports, a pair of bodies each including a primary and a secondary cylinder cooperative respectively each with one of the primary and one of the secondary pistons, means for shifting the respective valve devices to alternately supply pressure water to the respective pri mary pistons and cylinders and exhaust the same therefrom, said means comprising link members carried by the cylinder bodies, arms connected with the respective valves and cooperating with the link members and an overbalancing weight connected with the valves.

ERNEST O. GARTWRIGHT. 

